221002211211101 has 16 divisors (see below), whose sum is σ = 234033610777344. Its totient is φ = 208262558427264.

The previous prime is 221002211211071. The next prime is 221002211211113. The reversal of 221002211211101 is 101112112200122.

It is a cyclic number.

It is not a de Polignac number, because 221002211211101 - 2³⁸ = 220727333304157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221002211211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221002211211151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72708746 + ... + 75687291.

It is an arithmetic number, because the mean of its divisors is an integer number (14627100673584).

Almost surely, 2^{221002211211101} is an apocalyptic number.

It is an amenable number.

221002211211101 is a deficient number, since it is larger than the sum of its proper divisors (13031399566243).

221002211211101 is a wasteful number, since it uses less digits than its factorization.

221002211211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148397020.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 221002211211101 its reverse (101112112200122), we get a palindrome (322114323411223).

The spelling of 221002211211101 in words is "two hundred twenty-one trillion, two billion, two hundred eleven million, two hundred eleven thousand, one hundred one".